Independent comparisons. We may earn from shop links. More info

Weber kettle cooking grate size

Updated: 16 October 2026

If you own a 47 cm or 57 cm Weber kettle, do not order a cooking grate with the same diameter as the barbecue's name. The correct Weber kettle cooking grate size is smaller than the bowl: a 44.5 cm grate for 47 cm charcoal barbecues, and about 54.5–54.6 cm for a 57 cm kettle. You also need the upper cooking grate, not the charcoal grate below it. Start with the [stainless steel barbecue grill grate comparison](/hub/grills-and-barbecues/stainless-steel-barbecue-grill-grate) for shapes and materials, and use the part dimensions here before ordering. The Products Compared editorial team used Weber UK pages read on 15 October 2026. Links to amazon.co.uk are affiliate links.

If you own a 47 cm or 57 cm Weber kettle, do not order a cooking grate with the same diameter as the barbecue's name.

Our top picks

Generic Round grate, 40 cm

Best overall

Generic Round grate, 40 cm
7.4/10about £10.88
View offer
Generic Round grate, 45 cm

Alternative

Generic Round grate, 45 cm
6.8/10about £14.48
View offer
Rovelin Rovelin 30 cm round grate

Alternative

Rovelin Rovelin 30 cm round grate
5.2/10about £10.39
View offer
On this page
  1. 1.The 47 cm kettle takes a 44.5 cm cooking grate
  2. 2.The 57 cm kettle uses about 54.5–54.6 cm
  3. 3.Cooking grate and charcoal grate are different parts
  4. 4.Why the smaller generic rounds do not solve the fit

The 47 cm kettle takes a 44.5 cm cooking grate

Weber part 8413 is the reference for a 47 cm charcoal barbecue. Weber UK gives its out-of-carton dimensions as 5.1 × 44.5 × 44.5 cm and lists it as fitting 47 cm charcoal barbecues, at £29.99. The 47 cm figure is the kettle size, not the disc. A full 47 cm replacement would be too large for the internal supports. Weber UK describes this part as plated steel, not stainless steel. It can settle the fit without meeting a stainless requirement. A generic 45 cm round looks close to 44.5 cm, but an extra 5 mm can matter on a narrow ledge, and the handles or edge wire may differ. Measure the old grate if you have it, then compare the seller's outside diameter rather than a title that says for 47 cm barbecue.

The 57 cm kettle uses about 54.5–54.6 cm

For a 57 cm Weber kettle, the cooking grate is roughly 54.5–54.6 cm across. UK retailer BBQ World describes Weber part 7437 as about 54.6 cm, while the amazon.co.uk listing for ASIN B0017TH9F2 gives 54.61 cm. That rounding does not turn the part into a 57 cm disc. Part 7437 is the stainless hinged cooking grate for this kettle. The hinges let you add charcoal without lifting the whole surface, so a plain circle is not the same part even when the diameter is close. None of the eight retained grates in the comparison is a documented 44.5 cm or 54.5 cm Weber cooking grate. A cheaper 30 cm or 45 cm disc does not create a fit for a 57 cm kettle.
Generic Round grate, 40 cm

Testsieger

Generic Round grate, 40 cm
7.4/10about £10.88
View offer

Cooking grate and charcoal grate are different parts

The cooking grate is the upper grid that supports food. The charcoal grate sits lower and supports fuel. Weber's assembly drawing shows them as separate parts on both 47 cm and 57 cm models. If a listing says charcoal grate, believe that even when the photo looks like a cooking grid. Check the words cooking grate, the kettle size and the measured outside diameter before you pay. Installation checks are in the guide to fitting and cleaning a stainless steel barbecue grill grate.

Why the smaller generic rounds do not solve the fit

The 30 cm Rovelin is not a replacement for either Weber size. A 40 cm disc stays short of the 44.5 cm reference for a 47 cm kettle. A 45 cm title looks close to 44.5 cm, but only a measured outside diameter and a compatible edge can establish a fit, and it cannot cover the roughly 54.5 cm supports of a 57 cm kettle. A listing that says one 45 cm disc fits both kettles contains a dimensional conflict. On a cold, empty barbecue, measure across the grate ledges in at least two directions. The stainless steel barbecue grill grate buying guide covers the broader measuring trade-offs. Identify 47 cm or 57 cm, select the upper cooking grate, then verify 44.5 cm or roughly 54.5–54.6 cm and the material before you pay.

Common questions

What diameter cooking grate fits a 47 cm Weber kettle?
Weber UK lists part 8413 at 44.5 cm across for its 47 cm charcoal barbecues. The barbecue's 47 cm name refers to the kettle size, not a 47 cm replacement disc. Part 8413 is plated steel, so check alternatives separately if you specifically require stainless steel.
What diameter grate fits a 57 cm Weber kettle?
Look for a cooking grate of about 54.5–54.6 cm. UK retailer information puts Weber part 7437 at approximately 54.6 cm, and amazon.co.uk lists 54.61 cm for ASIN B0017TH9F2. Verify the part number, diameter and edge features rather than buying a grate labelled simply 57 cm.
Is Weber part 8413 stainless steel?
No. Weber UK describes part 8413 as a plated cooking grate for 47 cm charcoal barbecues. Its 44.5 cm measurement is useful for identifying the required fit, but the part does not satisfy a stainless-steel requirement. Check the stated material rather than inferring it from a bright finish.
Which stainless hinged grate fits a 57 cm Weber kettle?
Weber part 7437 is the stainless hinged cooking grate associated with 57 cm kettles. Listings put its diameter at about 54.5–54.6 cm, not 57 cm. Confirm the part number and current seller specification because price and availability can change.
Can a 45 cm generic grate fit both 47 cm and 57 cm kettles?
No single 45 cm disc is a sound dimensional match for both. It is close to the 44.5 cm reference for a 47 cm kettle, although edge design still needs checking, but it is roughly 9.5 cm smaller than the cooking grate used by a 57 cm kettle.
How do I measure when the original grate is missing?
With the barbecue cold and empty, measure across the internal ledges that support the cooking grate, not across the outside of the bowl. Measure in at least two directions, note handles or obstructions and compare those figures with the seller's actual outside diameter. Do not use the lower charcoal-grate supports.

Related pages

Best stainless steel grill grate

Stainless steel barbecue grill grates

304 or 430 stainless grill grate: rain and magnets

Stainless BBQ grate buying guide: measure the grid

How to fit and clean a stainless grill grate safely

Sources

Listing prices and ratings are from amazon.co.uk files read on 15 October 2026. The public sources below cover kettle parts, steel grades, cleaning and outdoor fire safety.

  1. Weber UK: spare part 8413 for 47 cm charcoal barbecues (retrieved 15 October 2026)
  2. Weber kettle manual: cooking grate and charcoal grate (retrieved 15 October 2026)
  3. wowbbq: Weber stainless hinged cooking grate 7437 (retrieved 15 October 2026)
  4. BSSA: stainless steels for the food processing industries (retrieved 15 October 2026)
  5. thyssenkrupp Materials UK: 304 and 430 stainless steel (retrieved 15 October 2026)
  6. BSSA: cleaning methods for stainless steel (retrieved 15 October 2026)
  7. London Fire Brigade: barbecue safety leaflet, April 2024 (retrieved 15 October 2026)
  8. barbecue-smoker-recipes.com: stainless steel cooking grates (retrieved 15 October 2026)